Extremely high sensitivity
Rooms and stack monitoring
Fully configurable work cycle
Lead well for 3 l Marinelli geometry
Detector: NaI(Tl) 2”x2” scintillator with MCA
Electrovalves for automatic sampling of up to 5 rooms
Acquisition/processing SW, display of energy spectra
Relays for external devices
MDA (F-18): < 1 Bq/l (300 s)
MISTRAL XM is a system designed to sample and monitor the gamma activity concentration resulting from air activation, in Marinelli geometry.
In particular, MISTRAL XM Rooms is designed for free air monitoring, whereas MISTRAL XM Stack is used to monitor the air expelled from a chimney or a stack. In both cases, “X” indicates the number of sampling points: up to 5 (Rooms) or 1 (Stack).
The system is composed of:
The APU is the main user interface with the system, and it consists in a command and control console including: a panel PC, the system electronics, a control flow meter for the pump, and an array of electrovalves (if needed). The SDU-XM includes the NaI(Tl) detector with MCA, a lead shielding well, and a pump for air sampling. The system also manages the expulsion of the monitored air.
The Stack version includes a flow rate meter (STACK-DFM), to calculate the specific activity of the expelled air volume.
The software installed on the PC displays in real time the measurement, controls the system status, and allows to set the operative parameters, such as the alarm thresholds. The user can define specific regions of interest (ROIs) and thus determine the specific activity (Bq/g) of the sampled air.
